diff options
| author | Daniel Mack <daniel@zonque.org> | 2018-06-27 21:52:35 +0300 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2018-07-03 23:12:40 +0300 |
| commit | 73f103c9528135bc896459a58e2371ce86090aea (patch) | |
| tree | 5abb854dd586e6a78036e7df6e26b7ce01e44033 | |
| parent | d8be286739d6317b2c4b2a6c2cbf63d76410ff90 (diff) | |
| download | linux-73f103c9528135bc896459a58e2371ce86090aea.tar.xz | |
leds: lt3593: switch to gpiod interface
Clean up the code a bit and transition over to the gpiod based interface.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
| -rw-r--r-- | drivers/leds/leds-lt3593.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c index 1a3dc347db21..a096ee64cbbb 100644 --- a/drivers/leds/leds-lt3593.c +++ b/drivers/leds/leds-lt3593.c @@ -21,12 +21,13 @@ #include <linux/leds.h> #include <linux/delay.h> #include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/slab.h> #include <linux/module.h> struct lt3593_led_data { struct led_classdev cdev; - unsigned gpio; + struct gpio_desc *gpiod; }; static int lt3593_led_set(struct led_classdev *led_cdev, @@ -46,25 +47,25 @@ static int lt3593_led_set(struct led_classdev *led_cdev, */ if (value == 0) { - gpio_set_value_cansleep(led_dat->gpio, 0); + gpiod_set_value_cansleep(led_dat->gpiod, 0); return 0; } pulses = 32 - (value * 32) / 255; if (pulses == 0) { - gpio_set_value_cansleep(led_dat->gpio, 0); + gpiod_set_value_cansleep(led_dat->gpiod, 0); mdelay(1); - gpio_set_value_cansleep(led_dat->gpio, 1); + gpiod_set_value_cansleep(led_dat->gpiod, 1); return 0; } - gpio_set_value_cansleep(led_dat->gpio, 1); + gpiod_set_value_cansleep(led_dat->gpiod, 1); while (pulses--) { - gpio_set_value_cansleep(led_dat->gpio, 0); + gpiod_set_value_cansleep(led_dat->gpiod, 0); udelay(1); - gpio_set_value_cansleep(led_dat->gpio, 1); + gpiod_set_value_cansleep(led_dat->gpiod, 1); udelay(1); } @@ -85,15 +86,8 @@ static struct lt3593_led_data *lt3593_led_probe_pdata(struct device *dev) if (!led_data) return ERR_PTR(-ENOMEM); - if (!gpio_is_valid(template->gpio)) { - dev_info(dev, "skipping unavailable LT3593 LED at gpio " - "%d (%s)\n", template->gpio, template->name); - return ERR_PTR(-EINVAL); - } - led_data->cdev.name = template->name; led_data->cdev.default_trigger = template->default_trigger; - led_data->gpio = template->gpio; led_data->cdev.brightness_set_blocking = lt3593_led_set; state = (template->default_state == LEDS_GPIO_DEFSTATE_ON); @@ -108,6 +102,10 @@ static struct lt3593_led_data *lt3593_led_probe_pdata(struct device *dev) if (ret < 0) return ERR_PTR(ret); + led_data->gpiod = gpio_to_desc(template->gpio); + if (!led_data->gpiod) + return ERR_PTR(-EPROBE_DEFER); + ret = devm_led_classdev_register(dev, &led_data->cdev); if (ret < 0) return ERR_PTR(ret); |